Improvement in coffee-pots



R. H. KUPER.

Coffee-Pot.

Patented May 7,1872" UNITED STATES PATENT OFFICE.

RICHARD H. KUPER, OF NEW YORK, ASSIGNOR OF ONE HALF OF HIS RIGHT TOPETER B. REID, OF LOCKPORT, N. Y.

`IMPROVEMENT IN COFFEE-POTS.

Specification forming part of Letters Patent No. 126,555, dated May 7,1872.

To all whom it may concern:

Be it known that I, RICHARD H. KUPER, of the city, county, and State ofNew York,

' have made a new and useful Improvement in Coffee-Pots; and I do herebydeclare the following to be a full and exact description of the saine,reference being had to the accompanying drawing forming part of thisspecication, in which- Figure 1 is a sectional elevation of a coifecpotcontaining my improvement; and Fig. 2, a plan view showing the latterdetached.

Similar letters of reference in the accompanyin g drawing denote thesaine parts.

This invention relates to that class of coffee-pots in which the groundcoifee is held in a straining-vessel in the upper portion of the pot,and acted upon by a current of water forced upward in boiling from thebottom of the pot through a central vertical tube, passing through thebottom of the strainer, by

- which means it is intended to keep the grounds separate from theinfusion. This, however, is found diflicult to accomplish, exceptingwhen annel or other fine cloth is used for the strainer or filter, itbeing impossible to produce perforated sheet metal of sufficientiineness to prevent minute particles of coffee from passing through. lnthe application of such a cloth, however, the following difficultiesoccur, which have prevented its successful employment heretofore: In thefirst-place, the cloth after awhile wears out and another must besubstituted; in the second place, an aperture must be provided in thecloth for the admission of the cen- 4tral tube, and unless supportedaround the edge of such aperture it soon bags down, enlarging theopening and letting the ground coffee through; in the third place, whensupported around the opening and around its outer edge, the cloth aftera while stretches and bags down between the annular supports, andprovision must be made for readily tightening it up; and lastly, bothsupports must be so constructed that the cloth can readily and easily beapplied, secured, and removed when necessary. These diculties beingobviated the cloth can be successfully used, and will vastly improve theconstruction and increase the usefulness of this class of boilers. Myinvention consists in a new method of applying and securing said clothfor the purposes re- `ferred to, and substantially in the manner which Iwill now proceed to describe.

In the drawing, A is the colfee-pot, which is of the usual construction,and is provided at the bottom with a removable circular chamber, B, fromthe center of which rises a vertical tapering tube, C, the sameextending nearly to the cover D, which is provided with a detlector, G.E represents the coffee receptacle, which is composed of a tapering ringof sheet metal, e, the upper edge of which rests on the correspondingportion ofthe pot A, its lower edge being provided with anoutwardly-projecting bead, a, which, in connection with a hoop, F,confines the edge of a circular cloth or filter, H, which constitutesthe bottom of the receptacle E. The portions already described do notdiffer materially from other arrangements for the same purpose, andtherefore constitute no part of my invention. The tube C, is providedimmediately below the lilter H with a bead or collar, I, on which reststhe flange J, of a removable tube, K, which latter fits closely theoutside of the tube C, and extends to the top of the saine, as shown inFig. 1. L represents a short tube located in the center of thereceptacle E, and held in place by two arms or straps M, which extendand are connected to opposite sides of the ring e, as shown in Fig. 2.The bottom of the tube L is iiush with that of the ring e, and its boreis of sufficient size to t closely over tlie tube K; consequently itslower end bears upon the outwardly projecting flange J, and clampsclosely the cloth bottom H, which is provided with a central orificefitting around the tube K, the edges of this orifice being held securelybetween the edge of the tube L and the ange J. By this means a securejoint is effected between the cloth filter H and the central tube, thuspreventing the escape of any of the solid contents of the receptacle E.

The filter may be detached at any time by lifting the receptacle E fromthe pot, slipping off the hoop F, and removing the short tubular sectionK.

The deflector G maybe simply struck up7 in the cover D, instead ofconstituting a separate piece.

Having thus full)Y described my invention, what I claim as new, anddesire to secure by Letters Patent, is-

In combination with the central tube C, having the bead or flange I, Iclaim the cloth H, secured at its inner edge between the tnbularsections K L and at its outer edge between the inner rings e F,substantially as and for the purposes described.

RICHARD H. KUPER. Witnesses:

A. H. PRIDE, D. B. MCNEIL, J r.

